Patents
US 10811838 B2: Folded slab laser
- Granted
- 2020-10-20
- Filed
- 2019-03-25 application 16364004
- Type
- Utility · 16 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A folded slab waveguide laser having a hybrid waveguide-unstable resonator cavity. Multiple slab waveguides of thickness âtâ supporting vertical waveguide modes are physically arranged above one another in a stack and optically arranged in series through one or more cavity folding assemblies with curved mirrors. A gain medium such as a gas is arranged in each slab. Each cavity folding assembly is designed to redirect the radiation beam emitted from one slab waveguide into the next waveguide and also at the same time to provide a focus for the radiation beam so that a selected vertical waveguide mode (or modes) is (or are) coupled efficiently into the next slab.
Source: PVGPATDIS, file of 2026-04-10 (ipg201020.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| KERN TECHNOLOGIES, LLC 6 patents | US company or organization | Wadena, MN | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Paul E. Jackson | Wadena, MN | 8 | PVGPATDIS, file of 2026-04-10 | |
| Gerald L. Kern | Wadena, MN | 6 | PVGPATDIS, file of 2026-04-10 | |
| Jacob D Colby | Wadena, MN | 3 | PVGPATDIS, file of 2026-04-10 | |
| Aaron M. Kern | Wadena, MN | 5 | PVGPATDIS, file of 2026-04-10 | |
| Tyler P Schmidt | Wadena, MN | 2 | PVGPATDIS, file of 2026-04-10 | |
| Keith L Weiher | Wadena, MN | 3 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| H01S | Devices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light; devices using stimulated emission of electromagnetic radiation in wave ranges other than optical | H01S3/08095 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2019-03-26 | Assignment Assignment of assignor's interest | COLBY, JACOB D signed 2018-02-04 JACKSON, PAUL E signed 2018-02-04 KERN, AARON M signed 2018-02-04 KERN, GERALD L signed 2018-02-04 SCHMIDT, TYLER P signed 2018-02-04 WEIHER, KEITH L signed 2018-02-04 | KERN TECHNOLOGIES, LLC WADENA, MN | 48699/312 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.